So there are three sails, right? And the sails aren't sheets, right? But there is a rope that's not called a rope, but a tack that secures the sail and there is another rope, not called a rope, but a sheet, that is adjusted. And if this adjusted sheet is maladjusted and the sail flaps about in the wind, the sheet is to the wind. Multiply that by three sheets (i.e., ropes) that are very loose, then you have three sheets to the wind and a drunk ship.

Got it!

I always thought sheets were sails. Learn something every day.